GC433-TX045 Active Sensor Module: LoRa Solution and Application Fields

I. Core Features of the Module's LoRa Solution

II. Core Application Fields

1. Core Applications in Power System (Main Scenarios)

• High-voltage switchgear temperature measurement: Monitors the temperature of key parts such as busbar connectors, circuit breaker contacts, cable terminals, and isolating switches in the cabinet, and provides real-time early warning of overheating hazards caused by poor contact;
• Ring main unit/medium-voltage switchgear temperature measurement: Adapts to the temperature monitoring of equipment contacts in compact spaces such as ring main units and medium-voltage switchgears, with a compact size that does not occupy too much installation space and flexible networking;
• High-voltage busbar temperature measurement: Monitors the temperature of high-voltage busbar connection points, timely detects overheating problems caused by loose or oxidized busbars, and avoids serious faults such as busbar burnout and short circuit;
• Moving and static contact temperature measurement: Realizes precise temperature measurement for the moving and static contacts of switchgear, a high fault-prone area, and provides early warning of thermal faults caused by contact wear and poor contact;
• Transformer temperature measurement: Used for temperature monitoring of transformer bushings, tap changers, iron cores and other parts, no need to rely on the transformer's own current for power extraction, and deployment is more flexible;
• Cable joint temperature measurement: Monitors the temperature of cable intermediate joints and terminal joints to prevent overheating and fire hazards caused by insulation aging and excessive contact resistance;
• Auxiliary monitoring of power distribution room: Used for temperature monitoring of various auxiliary electrical equipment (such as terminal blocks, fuses) in the power distribution room to achieve comprehensive temperature measurement coverage of the power distribution room.

2. Other Extended Application Scenarios

• Industrial electrical equipment monitoring: Monitors the temperature of key contacts of motor control centers (MCC), frequency converters, UPS power supplies, contactors, relays and other equipment, no need to rely on the equipment's own current for power extraction, adapting to various industrial production scenarios;
• Rail transit electrical system: Monitors the temperature of power supply systems, traction converters, switchgear, braking systems and other equipment for high-speed railways/metros, adapts to the complex operating environment of rail transit, and ensures driving safety;
• New energy field: Used for temperature monitoring of power equipment such as photovoltaic inverters, energy storage systems, charging piles, and lithium battery packs, providing real-time early warning of hidden dangers such as battery overheating and inverter faults, adapting to the outdoor and distributed deployment scenarios of new energy power stations;
• Smart agriculture monitoring: Deployed in greenhouses, farmland, and livestock farms to monitor soil temperature, indoor air temperature in greenhouses, and temperature of livestock breeding environments. The low-power design enables long-term outdoor deployment without frequent battery replacement, helping the development of precision agriculture;
• Environmental and outdoor monitoring: Used for temperature monitoring of equipment in remote areas and outdoors, such as forest fire prevention temperature early warning, outdoor communication base station equipment temperature measurement, and weather station temperature collection. LoRa long-distance transmission can solve the problem of inconvenient outdoor wiring;
• Cold chain logistics monitoring: Monitors the temperature of goods in cold chain transport vehicles and cold storage warehouses. Active power supply does not require adaptation to complex power supply methods, and its compact size can be flexibly deployed in goods packaging or carriages to upload temperature data in real time, ensuring the quality of cold chain products;
• Water conservancy facility monitoring: Monitors the temperature of electrical equipment such as hydropower stations, pumping stations, and water conservancy gates, adapts to the outdoor and humid working environment of water conservancy facilities, and ensures the safe and stable operation of water conservancy projects;
• Intelligent building monitoring: Monitors the temperature of building power distribution equipment, central air conditioning systems, and fire-fighting equipment (such as fire dampers) to realize intelligent temperature control of building equipment and timely warn of equipment faults.

III. Solution Advantages and Value

• Low power consumption and long battery life: The sleep current is only 1μA, combined with the battery-powered design, it greatly extends the battery life, reduces the frequency of battery replacement, lowers long-term operation and maintenance costs, and is suitable for long-term unattended scenarios;
• Flexible and convenient deployment: No need to rely on CT power harvesting (different from passive modules), not limited by wire current, can be deployed in parts with no continuous current, remote areas or inconvenient wiring. Compact size, simple assembly, no need for custom molds, adapting to various installation scenarios;
• Stability and reliability: Industrial-grade wide temperature design, strong anti-interference ability. LoRa modulation technology can effectively avoid electromagnetic interference in industrial environments, with a temperature measurement accuracy of ±1℃, ensuring the accuracy of data transmission and temperature measurement results;
• Flexible networking and low cost: With built-in networking and uploading functions, a single receiving module can match multiple transmitting modules, supporting multi-point synchronous monitoring. No need to deploy complex network servers, the networking is flexible and the cost is controllable;
• Convenient configuration: Supports parameter configuration through AT commands and upper computer software, can flexibly adjust transmitting power, channel, temperature measurement cycle, etc., and parameters are saved when power is off, adapting to the monitoring needs of different scenarios;
• Strong compatibility: Perfectly matched with the GC433-RX043 receiving module of the same series, it can seamlessly connect to SCADA systems or cloud platforms to realize real-time data monitoring, alarm and analysis, adapting to the existing intelligent monitoring system.

IV. Typical Application Solution Architecture

• GC433-TX045 transmitting module: Installed at the measured point (power equipment contacts, industrial equipment, outdoor scenarios, etc.), it can start working immediately after installing the battery and connecting the NTC sensor, automatically collect temperature data and transmit it wirelessly through LoRa;
• GC433-RX043 receiving module: As a supporting LoRa receiving host, it is deployed in the monitoring center or nearby location to receive temperature data transmitted by multiple transmitting modules and realize multi-point synchronous aggregation;
• Data management system: Uploads the data aggregated by the receiving module to the SCADA system, cloud platform or local monitoring terminal through serial port/Ethernet, realizing real-time display of temperature data, abnormal alarm, historical data query and data analysis, helping users realize intelligent and unmanned equipment monitoring.